--- /dev/null
+;;; frontends-tests.el --- company-mode tests -*- lexical-binding: t -*-
+
+;; Copyright (C) 2015 Free Software Foundation, Inc.
+
+;; Author: Dmitry Gutov
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
+(require 'company-tests)
+
+(ert-deftest company-pseudo-tooltip-does-not-get-displaced ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (save-excursion (insert " ff"))
+ (company-mode)
+ (let ((company-frontends '(company-pseudo-tooltip-frontend))
+ (company-begin-commands '(self-insert-command))
+ (company-backends
+ (list (lambda (c &optional _)
+ (cl-case c (prefix "") (candidates '("a" "b" "c")))))))
+ (let (this-command)
+ (company-call 'complete))
+ (company-call 'open-line 1)
+ (should (eq 1 (overlay-start company-pseudo-tooltip-overlay)))))))
+
+(ert-deftest company-pseudo-tooltip-show ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "aaaa\n bb\nccccccc\nddd")
+ (search-backward "bb")
+ (let ((col (company--column))
+ (company-candidates-length 2)
+ (company-candidates '("123" "45"))
+ (company-backend 'ignore))
+ (company-pseudo-tooltip-show (company--row) col 0)
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 5))
+ ;; FIXME: Make it 2?
+ (should (eq (overlay-get ov 'company-height) company-tooltip-limit))
+ (should (eq (overlay-get ov 'company-column) col))
+ (should (string= (overlay-get ov 'company-display)
+ "\n 123 \nc 45 c\nddd\n")))))))
+
+(ert-deftest company-pseudo-tooltip-edit-updates-width ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (set-window-buffer nil (current-buffer))
+ (let ((company-candidates-length 5)
+ (company-candidates '("123" "45" "67" "89" "1011"))
+ (company-backend 'ignore)
+ (company-tooltip-limit 4)
+ (company-tooltip-offset-display 'scrollbar))
+ (company-pseudo-tooltip-show (company--row)
+ (company--column)
+ 0)
+ (should (eq (overlay-get company-pseudo-tooltip-overlay 'company-width)
+ 6))
+ (company-pseudo-tooltip-edit 4)
+ (should (eq (overlay-get company-pseudo-tooltip-overlay 'company-width)
+ 7)))))
+
+(ert-deftest company-preview-show-with-annotations ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (save-excursion (insert "\n"))
+ (let ((company-candidates-length 1)
+ (company-candidates '("123")))
+ (company-preview-show-at-point (point))
+ (let* ((ov company-preview-overlay)
+ (str (overlay-get ov 'after-string)))
+ (should (string= str "123"))
+ (should (eq (get-text-property 0 'cursor str) 1)))))))
+
+(ert-deftest company-pseudo-tooltip-show-with-annotations ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert " ")
+ (save-excursion (insert "\n"))
+ (let ((company-candidates-length 2)
+ (company-backend (lambda (action &optional arg &rest _ignore)
+ (when (eq action 'annotation)
+ (cdr (assoc arg '(("123" . "(4)")))))))
+ (company-candidates '("123" "45"))
+ company-tooltip-align-annotations)
+ (company-pseudo-tooltip-show-at-point (point) 0)
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 8))
+ (should (string= (overlay-get ov 'company-display)
+ "\n 123(4) \n 45 \n")))))))
+
+(ert-deftest company-pseudo-tooltip-show-with-annotations-right-aligned ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert " ")
+ (save-excursion (insert "\n"))
+ (let ((company-candidates-length 3)
+ (company-backend (lambda (action &optional arg &rest _ignore)
+ (when (eq action 'annotation)
+ (cdr (assoc arg '(("123" . "(4)")
+ ("67" . "(891011)")))))))
+ (company-candidates '("123" "45" "67"))
+ (company-tooltip-align-annotations t))
+ (company-pseudo-tooltip-show-at-point (point) 0)
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 13))
+ (should (string= (overlay-get ov 'company-display)
+ "\n 123 (4) \n 45 \n 67 (891011) \n")))))))
+
+(ert-deftest company-create-lines-shows-numbers ()
+ (let ((company-show-numbers t)
+ (company-candidates '("x" "y" "z"))
+ (company-candidates-length 3)
+ (company-backend 'ignore))
+ (should (equal '(" x 1 " " y 2 " " z 3 ")
+ (company--create-lines 0 999)))))
+
+(ert-deftest company-create-lines-truncates-annotations ()
+ (let* ((ww (company--window-width))
+ (data `(("1" . "(123)")
+ ("2" . nil)
+ ("3" . ,(concat "(" (make-string (- ww 2) ?4) ")"))
+ (,(make-string ww ?4) . "<4>")))
+ (company-candidates (mapcar #'car data))
+ (company-candidates-length 4)
+ (company-tooltip-margin 1)
+ (company-backend (lambda (cmd &optional arg)
+ (when (eq cmd 'annotation)
+ (cdr (assoc arg data)))))
+ company-tooltip-align-annotations)
+ (should (equal (list (format " 1(123)%s " (company-space-string (- ww 8)))
+ (format " 2%s " (company-space-string (- ww 3)))
+ (format " 3(444%s " (make-string (- ww 7) ?4))
+ (format " %s " (make-string (- ww 2) ?4)))
+ (company--create-lines 0 999)))
+ (let ((company-tooltip-align-annotations t))
+ (should (equal (list (format " 1%s(123) " (company-space-string (- ww 8)))
+ (format " 2%s " (company-space-string (- ww 3)))
+ (format " 3 (444%s " (make-string (- ww 8) ?4))
+ (format " %s " (make-string (- ww 2) ?4)))
+ (company--create-lines 0 999))))))
+
+(ert-deftest company-create-lines-truncates-common-part ()
+ (let* ((ww (company--window-width))
+ (company-candidates-length 2)
+ (company-tooltip-margin 1)
+ (company-backend #'ignore))
+ (let* ((company-common (make-string (- ww 3) ?1))
+ (company-candidates `(,(concat company-common "2")
+ ,(concat company-common "3"))))
+ (should (equal (list (format " %s2 " (make-string (- ww 3) ?1))
+ (format " %s3 " (make-string (- ww 3) ?1)))
+ (company--create-lines 0 999))))
+ (let* ((company-common (make-string (- ww 2) ?1))
+ (company-candidates `(,(concat company-common "2")
+ ,(concat company-common "3"))))
+ (should (equal (list (format " %s " company-common)
+ (format " %s " company-common))
+ (company--create-lines 0 999))))
+ (let* ((company-common (make-string ww ?1))
+ (company-candidates `(,(concat company-common "2")
+ ,(concat company-common "3")))
+ (res (company--create-lines 0 999)))
+ (should (equal (list (format " %s " (make-string (- ww 2) ?1))
+ (format " %s " (make-string (- ww 2) ?1)))
+ res))
+ (should (eq 'company-tooltip-common-selection
+ (get-text-property (- ww 2) 'face
+ (car res))))
+ (should (eq 'company-tooltip-selection
+ (get-text-property (1- ww) 'face
+ (car res))))
+ )))
+
+(ert-deftest company-create-lines-clears-out-non-printables ()
+ :tags '(interactive)
+ (let (company-show-numbers
+ (company-candidates (list
+ (decode-coding-string "avalis\351e" 'utf-8)
+ "avatar"))
+ (company-candidates-length 2)
+ (company-backend 'ignore))
+ (should (equal '(" avalis‗e "
+ " avatar ")
+ (company--create-lines 0 999)))))
+
+(ert-deftest company-create-lines-handles-multiple-width ()
+ :tags '(interactive)
+ (let (company-show-numbers
+ (company-candidates '("蛙蛙蛙蛙" "蛙abc"))
+ (company-candidates-length 2)
+ (company-backend 'ignore))
+ (should (equal '(" 蛙蛙蛙蛙 "
+ " 蛙abc ")
+ (company--create-lines 0 999)))))
+
+(ert-deftest company-create-lines-handles-multiple-width-in-annotation ()
+ (let* (company-show-numbers
+ (alist '(("a" . " ︸") ("b" . " ︸︸")))
+ (company-candidates (mapcar #'car alist))
+ (company-candidates-length 2)
+ (company-backend (lambda (c &optional a)
+ (when (eq c 'annotation)
+ (assoc-default a alist)))))
+ (should (equal '(" a ︸ "
+ " b ︸︸ ")
+ (company--create-lines 0 999)))))
+
+(ert-deftest company-column-with-composition ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "lambda ()")
+ (compose-region 1 (1+ (length "lambda")) "\\")
+ (should (= (company--column) 4)))))
+
+(ert-deftest company-plainify ()
+ (let ((tab-width 8))
+ (should (equal-including-properties
+ (company-plainify "\tabc\td\t")
+ (concat " "
+ "abc "
+ "d "))))
+ (should (equal-including-properties
+ (company-plainify (propertize "foobar" 'line-prefix "-*-"))
+ "-*-foobar")))
+
+(ert-deftest company-buffer-lines-with-lines-folded ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (insert (propertize "aaa\nbbb\nccc\nddd\n" 'display "aaa+\n"))
+ (insert "eee\nfff\nggg")
+ (should (equal (company-buffer-lines (point-min) (point-max))
+ '("aaa" "eee" "fff" "ggg")))))
+
+(ert-deftest company-buffer-lines-with-multiline-display ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (insert (propertize "a" 'display "bbb\nccc\ndddd\n"))
+ (insert "eee\nfff\nggg")
+ (should (equal (company-buffer-lines (point-min) (point-max))
+ '("" "" "" "eee" "fff" "ggg")))))
+
+(ert-deftest company-buffer-lines-with-multiline-after-string-at-eob ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (insert "a\nb\nc\n")
+ (let ((ov (make-overlay (point-max) (point-max) nil t t)))
+ (overlay-put ov 'after-string "~\n~\n~"))
+ (should (equal (company-buffer-lines (point-min) (point-max))
+ '("a" "b" "c")))))
+
+(ert-deftest company-modify-line ()
+ (let ((str "-*-foobar"))
+ (should (equal-including-properties
+ (company-modify-line str "zz" 4)
+ "-*-fzzbar"))
+ (should (equal-including-properties
+ (company-modify-line str "xx" 0)
+ "xx-foobar"))
+ (should (equal-including-properties
+ (company-modify-line str "zz" 10)
+ "-*-foobar zz"))))
+
+(ert-deftest company-scrollbar-bounds ()
+ (should (equal nil (company--scrollbar-bounds 0 3 3)))
+ (should (equal nil (company--scrollbar-bounds 0 4 3)))
+ (should (equal '(0 . 0) (company--scrollbar-bounds 0 1 2)))
+ (should (equal '(1 . 1) (company--scrollbar-bounds 2 2 4)))
+ (should (equal '(2 . 3) (company--scrollbar-bounds 7 4 12)))
+ (should (equal '(1 . 2) (company--scrollbar-bounds 3 4 12)))
+ (should (equal '(1 . 3) (company--scrollbar-bounds 4 5 11))))